51707669 has 8 divisors (see below), whose sum is σ = 56125440. Its totient is φ = 47352816.

The previous prime is 51707651. The next prime is 51707671. The reversal of 51707669 is 96670715.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51707669 - 2⁸ = 51707413 is a prime.

It is a super-2 number, since 2×51707669² = 5347366066827122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51707639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14009 + ... + 17310.

It is an arithmetic number, because the mean of its divisors is an integer number (7015680).

Almost surely, 2^51707669 is an apocalyptic number.

It is an amenable number.

51707669 is a deficient number, since it is larger than the sum of its proper divisors (4417771).

51707669 is a wasteful number, since it uses less digits than its factorization.

51707669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31459.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 51707669 is about 7190.8044751613. The cubic root of 51707669 is about 372.5503593912.

The spelling of 51707669 in words is "fifty-one million, seven hundred seven thousand, six hundred sixty-nine".